Superb crystals of chalcopyrite with sphalerite and galena from the famous Madan ore field, Bulgaria. It displays to 24mm yellow chalcopyrite crystals. They are sharp and very well formed. The luster is good and the color is reach. Black sphalerite crystals and galena form the base. It displays aesthetically from all sides. In excellent condition. On acrylic base.

Marvelous!